list1=[1,2,3,4,5]
for i in range(len(list1)):
    print(list1[i],end=' ')
print()
print('---------------------')
for i in list1:
    print(i,end=' ')
print()
print('---------------------')
list1.append(6)
print(list1)

list2=[8,9]
list1.extend(list2)
print(list1)
print(list2)
list1.insert(2,66)
print(list1)
#升序，排序
list1.sort()
print(list1)
list1.reverse()#反转
print(list1)
list1.sort(reverse=True)

list3=[14,22,3,4,5]
list4=sorted(list3)#返回一个新列表，原列表不变
print(list3)
print(list4)

num=list4.pop()#返回删除的元素
print(num)
print(list4)

tuple_demo = ('p','y','t', 'h', 'o','n')
#tuple_demo[2]
#tuple_demo[2:5]
for i in tuple_demo:
    print(i)

set1={1,2,3,4,5}#集合
for i in set1:
    print(i,end=' ')
print()

dict1={'name':'zhangsan','age':18}#字典
for key in dict1:
    print(key,end=' ')
print()
dict1['sex']='male' #add
dict1['age']=19  #update
for key,value in dict1.items():
    print(key,value)